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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 中国体视学会材料科学分会理事；中国体视学会金相分会理事
性别：男
毕业院校：东北大学
学位：博士
所在单位：材料科学与工程学院
学科：材料学
办公地点：新三束实验室（4号楼）305
联系方式：13390512391
电子邮箱：wynmm@dlut.edu.cn
Extended Dislocations in Plastically Deformed Metallic Nanoparticles
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论文类型：期刊论文
发表时间：2016-05-24
发表刊物：NANOMATERIALS AND NANOTECHNOLOGY
收录刊物：SCIE、EI
卷号：6
期号：1
ISSN号：1847-9804
关键字：Nanoparticles; Nanomechanics; Molecular Dynamics Simulations
摘要：In the present study, the sawtooth nature of compressive loading of metallic nanoparticles is observed using a molecular dynamics simulation. The atomic structure evolution confirmed that extended dislocations are the main defects split into two asynchronous partial dislocations, along with stored and released fault energy. This is considered the essence of sawtooth loading. The size of the nanoparticles relative to the equilibrium width of the extended dislocation is discussed to explain the simulation results.